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5669results about "Hot-water central heating" patented technology
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System for modular building construction
InactiveUS20080134589A1Facilitating selective interconnectionGood choiceConstruction materialLighting and heating apparatusEnvironmental systemsModular unit
Construction systems for erecting building structures comprise a plurality of prefabricated interconnectable modular building units, each unit not meeting at least one of the ISO certification criteria for transport of cargo but each unit comprising a frame shaped as a rectangular parallelopiped and comprised of framing members and a plurality of nodes, each node situated at a corner of said frame for selective interconnection with other units, the nodes and the exterior dimensions of the frame conforming to ISO shipping standards such that each unit is transportable using the ISO intermodal transportation system, and such that when the units are aggregated horizontally and vertically and adjacent units are interconnected, a building structure comprising at least one habitable space is formed. The modular units are assembled in a factory remote from the job site, and are there constructed to a semi-finished state, including installation of one or more of interior fit-out systems and finishes, exterior envelope systems, plumbing systems, electrical systems, environmental systems, and fire protection systems, following which the semi-finished modular units are transported from the factory to the job site, where they are craned into place and secured to form the structure being erected, a plurality of adjacent pairs of semi-finished modular units also being “stitched” together, and the semi-finished modular units are thereafter constructed to a finished state.
Owner:GLOBAL BUILDING MODULES
System for modular building construction
InactiveUS7827738B2Good choiceFacilitating selective interconnectionConstruction materialLighting and heating apparatusBuilding unitBuilding construction
Owner:GLOBAL BUILDING MODULES
Large temperature-difference central heating system
ActiveCN101231004ALarge heating temperature differenceImprove delivery capacityHeat recovery systemsLighting and heating apparatusElectricityExternal energy
The invention relates to a central heating system with large temperature difference, which belongs to the energy field. The system comprises a steam turbine, a condenser, a steam absorption heat pump, a steam-water heat exchanger, a hot water absorption heat pump, a water-water heat exchanger as well as a connecting pipe and accessories. The invention is characterized in that the temperature difference of the heat net supply is large, and is about one time higher than the conventional heat net operation, thus the transmission capacity of the heat net is greatly increased, and at the same time, no heat preservation and thermal stress compensation problems exist as the backwater temperature of the heating is low, thereby reducing the investment of the backwater pipeline network and the whole pipeline network; the steam turbine is utilized to discharge steam and preheat the backwater of the large heat net, and circulating cooling water is utilized to be taken as the low level heat energy of the absorption heat pumps. The invention has the advantages that the residual heat produced in the electricity generating process of a power plant is recycled to the greatest extent as much as possible, the combination mode of the hot water absorption heat pump and the water-water heat exchanger is adopted at the end to heat the hot water of the secondary heat net supply, and the temperature difference of the supply-water and the backwater of the large heat net are increased, at the same time, the heat net does not need external energy to be the driving force.
Owner:TSINGHUA UNIV +1
Digital fluid heating system
ActiveUS20180142905A1Solar heating energyGeneral water supply conservationAutomatic controlCommunications system
A digital fluid heating system may include a solar collection system configured for focusing sunlight on a focal axis, an elongated flow element arranged and configured for transporting fluid along the solar collection system at the focal axis, and a flow-control assembly comprising a digitally controlled valve configured to control the flow of the fluid in the elongated flow element such that pathogens present in the fluid are substantially inactivated before the fluid exits the fluid heating system and at a maximized flow rate under the given energy providing conditions. The system may also include one or more digital controls and communication systems for remote and / or automatic control.
Owner:WTS
Steam jet type heat pump heat distribution system for recovering thermal power plant condensing residual heat
InactiveCN101240909AEasy to manufactureImprove heat transfer effectFeed water supplyEnergy efficient heating/coolingLow voltageCore component
The present invention provides a steam injection heatpump heating system. The technical solution is that the system is composed of a steam injector, a high voltage steam pipeline, a low voltage steam pipeline, a throttling gear and a bypass connecting pipe. The high voltage steam enters in the heat exchanger heaing backwater after injecting lower steam turbine voltage condensing in low temperature, this realises waste heat recovery in low temperature condensing steam of the steam turbine. The core component is the steam injector, the high voltage heat supplying pumping is used as high-velocity jet acceleratively formed in the injecting tube of the working steam, and lower voltage steam turbine is rolled in the mixing room as injected flow, mixing steam in the expanding section of the steam injector is decelerately compressed in a certain back pressure, then sending to the heat interchanger for heating backwater, a certian back pressure mixing steam condenses to water after heat releasing in the exchanger, returning to the backwater system of electrical factory, completing thermal circuit of the combined heat and power generation set.
Owner:TSINGHUA UNIV
System and method for hydronic space heating with electrical power generation
ActiveUS20050161521A1Easy to useMaximizing run timeInternal combustion piston enginesWaste gas energyCogenerationEngineering
This invention provides a system and method for cogeneration of electric power and building heat that efficiently interfaces a liquid-cooled electric power generator with a multi-zone forced hot water (hydronic) space heating system. The system and method utilizes an electric generator with an electric output capacity (kW) that is near the time-averaged electric power consumption rate for the building and with a heat generation capacity that is useful for meeting building heating needs. This generator is operated as the priority source of heat for the building, but normally only when there is a demand for heat in building, with the intent of running the generator for long periods of time and generating a total amount of electric energy (kWhs) that is significant in comparison to the total electric energy consumption of the building over time. The actual onsite time-variable power demand (kW) is met by a combination of the cogenerated electric power produced on site and quantities of electric power from the public electric power grid or another external power source. Hence, useful electric power is generated on site as a by-product of the required generation of heat for space or water heating. The generator is run at a speed / operating condition that is appropriate to maintaining a long operational life.
Owner:CLIMATE ENERGY
Oil-fired frac water heater
ActiveUS8534235B2Maximize atomization and combustionMaximize combustionAir-treatment apparatus arrangementsAir heatersFuel tankHydraulic fracturing
Owner:CHANDLER RONALD L
System and method for hydronic space heating with electrical power generation
ActiveUS7284709B2Minimizing starting and stoppingMaximizing run timeInternal combustion piston enginesGas turbine plantsCogenerationElectric generator
This invention provides a system and method for cogeneration of electric power and building heat that efficiently interfaces a liquid-cooled electric power generator with a multi-zone forced hot water (hydronic) space heating system. The system and method utilizes an electric generator with an electric output capacity (kW) that is near the time-averaged electric power consumption rate for the building and with a heat generation capacity that is useful for meeting building heating needs. This generator is operated as the priority source of heat for the building, but normally only when there is a demand for heat in building, with the intent of running the generator for long periods of time and generating a total amount of electric energy (kWhs) that is significant in comparison to the total electric energy consumption of the building over time. The actual onsite time-variable power demand (kW) is met by a combination of the cogenerated electric power produced on site and quantities of electric power from the public electric power grid or another external power source. Hence, useful electric power is generated on site as a by-product of the required generation of heat for space or water heating. The generator is run at a speed / operating condition that is appropriate to maintaining a long operational life.
Owner:CLIMATE ENERGY
System for modular building construction
InactiveUS20160160515A1Facilitating selective interconnectionGood choiceLighting and heating apparatusProtective buildings/sheltersBuddingModular unit
Construction systems for erecting budding structures comprise a plurality of prefabricated interconnectable modular budding units, each unit comprising framing members and a plurality of nodes, each node situated for selective interconnection with other units, the nodes and the exterior dimensions of the frame conforming to ISO shipping standards such that each unit is transportable using the ISO intermodal transportation system, and such that when the units are interconnected, a building structure is formed. The modular units are assembled at a remote location, and are there constructed to a semi-finished state, following which the semi-finished modular units are transported from the remote location to the job site, where they are secured to form the structure being erected, and the semi-finished modular units are thereafter constructed to a finished state.
Owner:GLOBAL BUILDING MODULES
Heat pump type heat exchanging unit
ActiveCN101236032AIncrease the temperature difference between supply and return waterLower return water temperatureHeat pumpsEnergy efficient heating/coolingWater flowEngineering
The invention relates to a heat pump type heat exchange units, which belongs to the technical field of energy. The units are composed of hot water type absorption heat pump units, a water-water heat exchanger, various connecting pipelines and accessories, wherein a water flow system of the connecting pipelines is divided into a primary side pipeline and a secondary side pipeline, the primary side pipeline employs a manner of a step sequence series connection, hot water of the primary side pipeline sequentially passes through a generator of an absorption heat pump, the water-water heat exchanger and an evaporator of the absorption heat pump, hot water of the secondary side pipeline passes through an absorption device and a condenser of the absorption heat pump and the water-water heat exchanger, because the primary side pipeline of the heat exchange units sequentially passes through the generator of the absorption heat pump, the water-water heat exchanger and the evaporator of the absorption heat pump, energy of hot water is used step by step, thereby greatly increasing differential temperature between water supply and water return of primary side hot water. Additionally, outlet water temperature of primary side heat exchange units is commonly lower than that of secondary side inlet water, which can not be realized by conventional heat exchanger.
Owner:TSINGHUA UNIV +1
Watertight decking
InactiveUS20060288651A1Prevent capillary flowPrevent “ wicking ”TreadsCovering/liningsTongue and grooveEngineering
The watertight decking is assembled from extruded panels to form a watertight deck assembly. First side, second side, and intermediate panels have complementary edges mating with other corresponding panels. One edge of the first side and intermediate panels has a drainage gutter and the tongue or groove of a tongue and groove connection, with mating second side and intermediate panel edges having the mating tongue or groove. A depending drip rail wedges tightly against the opposite gutter wall of the adjoining panel to prevent relative motion between the two, and also to prevent capillary flow of liquid across the underside of the panel where it could leak into the area below. Additional sealing may be provided along the tongue and groove joints. A second, lower wall opposite the upper wall defines a series of conduits therebetween, and also strengthens the panels and provides a finished appearance for the underside.
Owner:REED BOBBY
Active thermal energy storage system and tank for use therein
InactiveUS20090173336A1Easy to useReduce needSolar heating energyCentral heating with accumulated heatSeasonal thermal energy storageThermal energy storage system
An active thermal energy storage system is disclosed which uses an energy storage material that is stable at atmospheric pressure and temperature and has a melting point higher than 32 degrees F. This energy storage material is held within a storage tank and used as an energy storage source, from which a heat transfer system (e.g., a heat pump) can draw to provide heating of residential or commercial buildings and associated hot water. The energy storage material may also accept waste heat from a conventional air conditioning loop, and may store such heat until needed. The system may be supplemented by a solar panel system that can be used to collect energy during daylight hours, storing the collected energy in the energy storage material. The stored energy may then be used during the evening hours to heat recirculation air for a building in which the system is installed.
Owner:ELCAL RES LLC
Water Manifold System And Method
InactiveUS20080276998A1Easily in buildingImprove scalabilityLighting and heating apparatusDomestic plumbingChlorinated polyvinyl chlorideEngineering
A system for distributing water within a building operates to distribute water from a pressurized water supply source to devices that receive water, such as faucets, toilets, showers, sprinklers, and hot water heating devices. The system includes at least one manifold which may be of unitary molded plastic construction and comprised of chlorinated polyvinyl chloride (CPVC). The manifold includes an entry port and a plurality of outlet ports which are also referred to as sockets. The sockets are configured to receive fitting inserts of various types that include water line connectors. The sockets are also configured to accept standard plastic water conduits therein in cemented relation. The water line connectors may include metallic connectors such as barbed fittings, which can be used to connect the manifold and crosslinked polyethylene (PEX) pipe in nonthreaded relation. Manifolds may be connected together to provide suitable distribution arrangements.
Owner:LUBRIZOL ADVANCED MATERIALS INC
System and method for warm air space heating with electrical power generation
Owner:CLIMATE ENERGY
Modeling Method of Combined Heat and Power Optimal Dispatching Model
ActiveUS20180356105A1Promote absorptionSolve the real problemFuel heating with wind energySimulator controlCogenerationEngineering
A CHP optimal dispatching model is a mixed integer programming model and is used for a district heating system (DHS) comprising a heat source, a heating network and a heat load, and the heating network comprises a heat transmission network and a heat distribution network. A plurality of heating areas is divided, and one day is divided into a plurality of time periods; the heat transmission loss of the heat distribution network is omitted, and a heat transmission network model taking transmission time delay of the heating network into consideration is established according to the heat transmission network; a terminal heat consumer model capable of reflecting indoor temperature is established; and a combined optimal dispatching model comprising conventional generators, wind power units, CHP units, electric boilers and heat storage tanks is established.
Owner:SOUTHEAST UNIV
Radiant floor heating and cooling system clip
ActiveUS6969832B1Durable and reliable constructionLower sales pricePipe supportsLighting and heating apparatusMain channelEngineering
A radiant heating and cooling system clip for positioning a tube and construction support wire with one hand comprising an interior having a main channel for positioning a tube with a narrowing second channel within said main channel for positioning a wire.
Owner:MEYER ENTERPRISES
System and method for saving energy and shaving peak by coordinating cogeneration set and wind energy generator set
InactiveCN101950962AAvoid downtimeAvoid wastingLighting and heating apparatusSteam engine plantsControl signalCogeneration
The invention relates to a system and a method for saving energy and shaving the peak by coordinating a cogeneration set and a wind energy generator set. The system comprises the cogeneration set, the wind energy generator set, a conditioner heat pump, an electric energy meter, a radiator, a heat consumption gauge, and a scheduling control device, wherein the scheduling control device is used for acquiring fuel consumption, generated output and heating output of the cogeneration set, generated output of the wind energy generator set, electric power consumption of heating of the conditioner heat pump, a scheduling control signal of the heating load of the radiator in the electric load trough period according to detected electivity consumption data and heating and heat consumption data, and controlling the cogeneration set, the wind energy generator set, the conditioner heat pump, and the radiator to run according to the scheduling control signal. Through the system and the method, the distribution of the generated output of each of the cogeneration set and the wind energy generator set is optimized so as to reduce the total energy consumption, save energy and solve the problems of the forced shutdown and the waste of abandoning electricity of the wind energy generator set in the electric load trough period of the power grid.
Owner:XI AN JIAOTONG UNIV
Chilled beam pump module, system, and method
ActiveUS20130199772A1Improve performanceSimple design and installationTemperatue controlHeat exchange apparatusWarm waterComputer module
Chilled-beam zone pump modules for controlling zones of a chilled-beam heating and air conditioning system, multiple-zone chilled beam air conditioning systems for cooling multiple-zone spaces, and methods of controlling chilled beams in multi-zone air conditioning systems. Embodiments include a pump serving each zone that both recirculates water within the module and chilled beam and circulates water in and out of a chilled or warm water distribution system through valves to control temperature. Different embodiments provide heating as well as cooling, use check valves to reduce the number of control valves required, adjust the temperature of the beam to avoid condensation, change pump speed to save energy or increase capacity, can be used in two- or four-pipe systems, allow for lower installation cost, provide better performance or control, improve reliability, overcome barriers to the use of chilled beams, or a combination thereof.
Owner:SEMCO INC
System and method for warm air space heating with electrical power generation
This invention provides a system and method for cogeneration of building heat and electric power and that efficiently interfaces a warm air heating system with a liquid-cooled electric power generator. The system and method utilizes an electric generator that is rated at near the time-averaged electric power consumption for the building. This generator is operated as the priority source of heat for the building, but normally only when there is a demand for heat in building. In this manner, the generator can run to generate a significant part of the building's electric power but in a manner that is typically supplemented in variable quantities by power from a public power grid. The heat output is directed via a liquid coolant circuit on the generator, as needed, to the warm air heating unit for the building. The warm air heating unit blows return air through a cabinet and out to the supply duct(s). The warm liquid coolant is directed through a primary heat exchanger in the cabinet. The air is passed over this primary heat exchanger to provide heat to the building. When heat from primary heat exchanger is insufficient to heat the building fully, an auxiliary heater, operated typically by burning fuel, supplements the heat through one or more auxiliary heat exchangers arranged in line along the airflow path with the primary heat exchanger. The blower that directs the airflow is controlled variably in speed to create the most efficient use of electric power by the blower and a desirable heated air delivery temperature.
Owner:CLIMATE ENERGY
Method and apparatus for positioning heating elements
ActiveUS9188348B2Improve bindingReduce weightPipe supportsDomestic stoves or rangesAdhesiveBiomedical engineering
Owner:PROGRESS PROFILES
Active thermal energy storage system
InactiveUS20080092875A1Reduce needEfficient local use of energySolar heating energyElectric discharge heatingSeasonal thermal energy storageThermal energy storage system
An active thermal energy storage system is disclosed which uses an energy storage material that is stable at atmospheric pressure and temperature and has a melting point higher than 32 degrees F. This energy storage material is held within a storage tank and used as an energy storage source, from which a heat transfer system (e.g., a heat pump) can draw to provide heating of residential or commercial buildings and associated hot water. The energy storage material may also accept waste heat from a conventional air conditioning loop, and may store such heat until needed. The system may be supplemented by a solar panel system that can be used to collect energy during daylight hours, storing the collected energy in the energy storage material. The stored energy may then be used during the evening hours to heat recirculation air for a building in which the system is installed.
Owner:ELCAL RES LLC
Heat pump system having auxiliary water heating and heat exchanger bypass
A heat pump system (10) includes a compressor (20), a reversing valve (30), an outdoor heat exchanger (40) and an indoor heat exchanger (50) coupled via refrigerant lines (35, 45, 55) in a conventional refrigeration circuit, a refrigerant to liquid heat exchanger (60), a refrigerant to liquid heat exchanger bypass valve (130), an outdoor heat exchanger bypass valve (230), and an indoor heat exchanger bypass valve (330). A controller (100) is provided to selectively control the respective positioning of the valves (30, 130, 230 and 330) between their respective open and closed positions so as to selectively configure the refrigerant circuit for operation in one of an air cooling only mode, an air cooling with liquid heating mode, an air heating only mode, an air heating with liquid heating mode, and a liquid heating only mode.
Owner:CARRIER CORP
Modular low profile cooling system
InactiveUS6644384B2Improve efficiencyImprove cooling effectAir heatersModifications for standard racks/cabinetsHigh densityModularity
Owner:VERTIV CORP +1
Energy-saving heat supply system with function of reducing temperature of heat supply return water
InactiveCN106705185AIncrease profitReduce circulating water flowLighting and heating apparatusSteam useCooling towerTemperature difference
The invention discloses an energy-saving heat supply system with a function of reducing the temperature of heat supply return water, and belongs to the field of improvement of energy utilization efficiency. Heat exchange can be repeatedly carried out on heat sources by multistage heat exchangers, multistage absorption heat exchange units, multistage compression heat pumps and an ice making type refrigerator, accordingly, the heat supply areas can be enlarged, and the energy utilization efficiency can be improved. The energy-saving heat supply system has the advantages that the temperature of the return water of heat supply primary pipe networks can be reduced and reach 0 DEG C, the return water contains 10% of ice particles, accordingly, route heat loss of the return water of the heat supply primary pipe networks can be reduced, the temperature difference of the return water of the heat supply primary pipe networks can be increased and reaches 118 DEG C from the original 60 DEG C, the flow rate of circulating water of the heat supply primary pipe networks can be lowered, energy consumption of circulating pumps can be reduced, heat supply flow rates of a user side can be greatly increased, the delivery efficiency of the pipe networks can be improved, the heat supply scale can be expanded, waste heat of a cooling tower can be recycled, and the like.
Owner:DALIAN BAOGUANG ENERGY SAVING AIR CONDITIONING EQUIP
Senor diagnostic for determining water heater health status
A method and apparatus for determining a health status of a water heating device is disclosed. The water heating device may have a controller that incorporates logic to regulate the heater responsive to water temperatures detected at different areas within the water heating device by first and second sensors. Unfortunately, the first and second sensors may fail. To detect fault conditions or otherwise determine the heath status of the water heating device, a logic unit in the controller may perform a test on the first and / or second sensors so as to provide a test output. The logic unit may also determine whether the test output satisfies one or more predetermined thresholds. These predetermined thresholds may be indicative of a properly-functioning sensor. When the test output does not satisfy the at least one predetermined threshold, the logic unit may then set a fault condition indicative of improperly functioning sensors.
Owner:ADEMCO INC
Fluid heating system
ActiveUS20100251973A1Facilitate control of fluid flowAvoid the needMechanical apparatusDomestic stoves or rangesEngineeringBiological activation
A fluid heat exchange system with a fluid flow circuit having a heat exchange fluid flow loop, a heat absorption component (as in a domestic hot water tank inclusive of small commercial use tanks as in tanks of 20 to 120 gallons), a heat exchanger and preferably also a pump. A controlled and automated fuel supply source based heater (as in a pellet stove) is in heat passage communication with the said heat exchanger. A control unit triggers activation of the pump upon fluid in the heat absorption component reaching or dropping below a preset temperature, and the fluid flow circuit is arranged such that, during times of non-activation of the pump, fluid is free to flow in a unidirectional flow within the fluid circuit based on thermodynamic temperature differentials alone. A retrofitting of a domestic hot water tank is also featured preferably making use of preexisting drain and safety vent porting for in-feed and out-feed porting in the exchange loop side. Also, the flow circuit preferably is free of check valves and steam accommodation equipment.
Owner:DONGO KENNETH A +1
Combined heat and power generation energy saving device using afterheat to supply heat and energy saving method
InactiveCN101967999AIncrease small loopReduce heat transfer irreversible lossLighting and heating apparatusEnergy efficient heating/coolingCooling towerCogeneration
The invention relates to a combined heat and power generation energy saving device using afterheat to supply heat and an energy saving method. The combined heat and power generation energy saving device comprises a steam boiler, a steam extraction condensed type steam turbine, an electric generator, a condenser, a deaerator and a cooling tower, wherein the steam extraction condensed type steam turbine is connected with the condenser by an exhaust steam cylinder, and the condenser is connected with the cooling tower to form large waterway circulation; the combined heat and power generation energy saving device also comprises a backpressure turbine, a compression heat pump and a heat exchanger, wherein a steam inlet of the backpressure turbine is connected with a steam extraction hole of the steam extraction condensed type steam turbine, an exhaust steam hole is connected with a steam inlet of the heat exchanger, the compression heat pump is drawn by the backpressure turbine and is connected with the backwater end of a hot-water pipe network, the condenser and the compression heat pump are connected with the cooling tower to form small waterway circulation, the water inlet end of the heat exchanger is connected with the water outlet end of the compression heat pump, the water outlet end is connected with the water inlet end of the hot-water pipe network, and the drainage end is connected with the deaerator. The invention is capable of reducing cold source loss, increasing comprehensive heat efficiency and electrothermal proportion and reducing unit electric-generation coal consumption.
Owner:联合优发生物质能源徐州有限公司
Flexible graphite flooring heat spreader
A floor heating system includes a flooring substrate having a heating or cooling element in heat transfer relationship therewith. A heat spreader is in heat transfer relationship with the flooring substrate. The heat spreader includes a layer of flexible graphite material. A floor covering overlies the layer of flexible graphite material. Temperature variations across an exposed surface of the floor covering are reduced by the presence of the flexible graphite heat spreader, thus providing an improved and more uniform heating to the floor and to the room with which the floor is associated.
Owner:NEOGRAF SOLUTIONS LLC
Intelligent heat supply network integrated system and control method thereof
ActiveCN104048347AReasonable controlEffective controlLighting and heating apparatusSpace heating and ventilation detailsFrequency changerControl system
The invention discloses an intelligent heat supply network integrated system and a control method of the intelligent heat supply network integrated system and relates to a city heating system and a control method of the city heating system. The system comprises a heat source, a heat supply dispatch initial station, a heat exchange station, a primary heat supply pipe network, a secondary heat supply pipe network and a building heat supply pipe network, a main control system, a primary controller, a secondary controller and a building controller are arranged, each stage of heat supply pipe network is provided with a heat meter, a pressure sensor, a temperature sensor and an electric adjusting valve, a circulation pump on the primary network and a circulation pump on the secondary network are respectively provided with a frequency converter, and the building controller, the primary controller and the secondary controller are connected with the main control system; the building controller is electrically connected with the electric adjusting valve of the building heat supply pipe network. The main control system obtains control parameters through the sensors on all the stages of pipe networks, and the working states of the heat supply pipe networks are adjusted and controlled according to the specific values between the parameters and designed values. According to the intelligent heat supply network integrated system, heat and water balance of the heat supply pipe networks is optimally controlled, no utilizable energy is wasted, and the intelligent heat supply network integrated system is green, capable of saving energy, environmentally friendly and beneficial for descendants.
Owner:山东国能智能科技有限公司
Central heating system and method for coupling circulating water heat pump of power plant with cogeneration
ActiveCN101839518AAvoid defectsRealize district heatingLighting and heating apparatusEnergy efficient heating/coolingCouplingCogeneration
The invention belongs to heating systems and methods for coupling a circulating water heat pump of a power plant with cogeneration in the field of energy sources. The system consists of a steam turbine, a steam compressed heat pump, a small backpressure steam turbine, a heating network heater and corresponding pipelines and accessory equipment. The system uses circulating water of the power plant as a heat source of a heat pump; a heat pump compressor is driven by an intermediate-pressure steam driving small steam turbine which does work in the power plant; and the small team turbine exhausts steam which enters the heating network heater to heat the heating network water. In addition, the function for extracting the heat from a low-temperature heat source except the circulating water of the power plant can be achieved by using the coupling of an absorbing type heat pump with a primary network and a secondary network in the heating network. The invention fully utilizes a large amount of cold source loss of a condensing type unit, overcomes the defects of the cogeneration and the heat pump by using the synergistic action of the circulating water heat pump of the power plant with the cogeneration and realizes the regional centralized heating. By using the technical measures, the thermal economy of the central heating system taking a team turbine unit power plant as the center is improved.
Owner:NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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